where the \(-(+)\)  sign in the second term has to be used for \(\gamma >0(<0)\) , respectively.
The expression for \({\mathcal {C}}_N\big |_{|h|>1}\)  being too cumbersome to reproduce here, although we note
that the \({\mathcal {O}}(\delta ^2)\)  term is indeed the \(\gamma -\gamma \)  component of the
information metric listed in [1]}, [2]}.
